Subject: [IGEXMail-0734] Wk 1055 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 12 Apr 2000 12:34:42

Sender: [email-masked]
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IGEXMail                12-Apr-2000 12:34:42                   Message No 0734
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Author: [email-masked] (D. Ineichen) 
Subject: Wk 1055 CODE IGEX Analysis Report 

Author: CODE AC Team
 
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CODE IGEX REPORT GPS WEEK 1055 (DAYS 086-092, DATES 26-03-00 - 01-04-00)
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Submitted by: Astronomical Institute, University of Berne, Switzerland
              Products available through anonymous ftp using:
              ftp ubeclu.unibe.ch  -or-  ftp 130.92.6.17
              after login: cd aiub$ftp; cd code
 
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PROCESSING STRATEGY:                                                           
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- The analysis was done by fixing the GPS orbits and Earth rotation parameters 
  to the CODE final GPS solution.                                              
                                                                               
- The orbital parameters for the GLONASS satellites were estimated using double
  difference phase observations (including double differences between GLONASS  
  and GPS satellites). Six initial conditions and nine radiation pressure para-
  meters per satellite were determined. No pseudo-stochastic pulses have been  
  introduced up to now.                                                        
                                                                               
- So far only receivers providing dual frequency GPS and GLONASS or dual fre-  
  quency GLONASS measurements were included in the solution.                   
                                                                               
- The daily orbit results stem from the middle day of a 5-day arc.             
                                                                               
- The satellite clock values included in the precise orbit files are broadcast 
  clock values for the GLONASS satellites (no improvement done so far) and     
  precise CODE estimates for the GPS satellites.                               
                                                                               
- The following sites are constrained to their ITRF97 coordinates:             
                                                                               
      - GODZ 40451M123 (Greenbelt, USA)                                        
      - KR0G 10422M001 (Kiruna, Sweden)                                        
      - OS0G 10402M004 (Onsala, Sweden)                                        
      - YARR 50107M006 (Yaragadee, Australia)                                  
      - ZIMZ 14001M005 (Zimmerwald, Switzerland)                               

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FILES SENT TO GLOBAL DATA CENTERS:                                             
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COX1055N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10557.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
 86         104    344119          9691        1.2
 87         104    339521          9841        1.2
 88         102    339021          9615        1.2
 89         101    325485          9296        1.1
 90         101    329370          9348        1.1
 91         100    324910          9230        1.1
 92          99    319123          8744        1.1
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 107 108 109 111 113 115 122
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  86   6   4   6   5   7   8   7   4
  87   7   7   8   7   3   6   4   5
  88   3   4   3   6   6   4   3   3
  89   4   6   7   7   7   6   5   3
  90   5   5   7   5   5   6   5   4
  91   4   3   7   6   8   5   2   2
  92   4   3   8   6   9   3   3   3
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 ALL   5   5   7   6   7   6   5   4
 -------------------------------------------------------------------------------
 Remark: These RMS values may be too optimistic, because we fit the middle days 
         of 5-day arcs with a 7-day arc.                                        

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 WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS                           
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 TOTAL NUMBER OF STATIONS:    23
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                       WEEKDAY  RESIDUAL RMS IN MM
 STATION        #DAYS  0123456     N     E     U
 -------------------------------------------------------------------------------
 BIPD 10094M001     7  PPPPPPP     7     9    40
 BORG 12205M004     7  PPPPPPP     6     9    26
 CRAR 66001M004     6  PPPP PP    12    15    14
 DAVR 66010M001     7  PPPPPPP    11    14    11
 DLFT 13502M006     6  PP PPPP     1     2     5
 GATR               6  P PPPPP     4     9    10
 GODZ 40451M123     1  P           -     -     -   CONSTRAINED
 GOPE 11502M002     7  PPPPPPP     2     3     5
 GRAB 11001M004     7  PPPPPPP     3     4     5
 KR0G 10422M001     7  PPPPPPP     -     -     -   CONSTRAINED
 LHAZ 21613M002     5  PPPPP       6    15     9
 MTBG 11030M001     7  PPPPPPP     2     3     4
 MTKA 21741S002     6  P PPPPP     9     6    13
 NPLC 13234M001     6  PPPP PP    15    22    38
 OS0G 10402M004     5   PP PPP     -     -     -   CONSTRAINED
 REYZ 10202M003     7  PPPPPPP     2     3     8
 THU2 43001M002     6  PPPPP P     1     6     8
 TSKA 21730M003     7  PPPPPPP    11    14    12
 VSLD 13502M008     5   PPPPP      3     7    14
 WTZZ 14201M014     5  PPPPP       3     2     8
 YARR 50107M006     7  PPPPPPP     -     -     -   CONSTRAINED
 ZIMJ 14001M006     6   PPPPPP     2     1     4
 ZIMZ 14001M005     7  PPPPPPP     -     -     -   CONSTRAINED
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